toolchain: add autoconf-lean

Use it to generate a more comprehensive configure sitefile

Signed-off-by: Felix Fietkau <nbd@nbd.name>

2 files changed, 141 insertions, 0 deletions

diff --git a/toolchain/autoconf-lean/patches/100-remove-unused-checks.patch b/toolchain/autoconf-lean/patches/100-remove-unused-checks.patch
new file mode 100644
index 0000000000..aa26336fe0
--- /dev/null
+++ b/toolchain/autoconf-lean/patches/100-remove-unused-checks.patch
@@ -0,0 +1,93 @@
+--- a/config-site-generator/configure.ac
++++ b/config-site-generator/configure.ac
+@@ -31,16 +31,16 @@ AC_PROG_GCC_TRADITIONAL
+ AC_PROG_CXX
+ AC_PROG_CXXCPP
+ AC_PROG_CXX_C_O
+-AC_PROG_OBJC
+-AC_PROG_OBJCPP
+-AC_PROG_OBJCXX
+-AC_PROG_OBJCXXCPP
++#AC_PROG_OBJC
++#AC_PROG_OBJCPP
++#AC_PROG_OBJCXX
++#AC_PROG_OBJCXXCPP
+ #AC_ERLANG_PATH_ERLC
+ #AC_ERLANG_PATH_ERL
+-AC_PROG_F77
+-AC_PROG_FC
+-AC_PROG_F77_C_O
+-AC_PROG_FC_C_O
++#AC_PROG_F77
++#AC_PROG_FC
++#AC_PROG_F77_C_O
++#AC_PROG_FC_C_O
+ #AC_PROG_GO
+ AC_PROG_AWK
+ AC_PROG_GREP
+@@ -52,13 +52,13 @@ AC_PROG_LEX
+ AC_PROG_LN_S
+ AC_PROG_RANLIB
+ AC_PROG_SED
+-AC_PROG_YACC
++#AC_PROG_YACC
+ 
+ AM_PROG_AS
+ 
+ # Checks for system services.
+-AC_PATH_X
+-AC_PATH_XTRA
++#AC_PATH_X
++#AC_PATH_XTRA
+ AC_SYS_INTERPRETER
+ AC_SYS_LARGEFILE
+ AC_SYS_LONG_FILE_NAMES
+@@ -163,27 +163,27 @@ AC_C_FLEXIBLE_ARRAY_MEMBER
+ AC_C_VARARRAYS
+ AC_C_TYPEOF
+ AC_C_PROTOTYPES
+-AC_F77_LIBRARY_LDFLAGS
+-AC_FC_LIBRARY_LDFLAGS
+-AC_F77_DUMMY_MAIN
+-AC_FC_DUMMY_MAIN
+-AC_F77_MAIN
+-AC_FC_MAIN
+-AC_F77_WRAPPERS
+-AC_FC_WRAPPERS
+-AC_F77_FUNC
+-AC_FC_FUNC
+-AC_FC_PP_SRCEXT
+-AC_FC_PP_DEFINE
+-AC_FC_FREEFORM
+-AC_FC_FIXEDFORM
+-AC_FC_LINE_LENGTH
+-AC_FC_CHECK_BOUNDS
+-AC_F77_IMPLICIT_NONE
+-AC_FC_IMPLICIT_NONE
+-AC_FC_MODULE_EXTENSION
+-AC_FC_MODULE_FLAG
+-AC_FC_MODULE_OUTPUT_FLAG
++#AC_F77_LIBRARY_LDFLAGS
++#AC_FC_LIBRARY_LDFLAGS
++#AC_F77_DUMMY_MAIN
++#AC_FC_DUMMY_MAIN
++#AC_F77_MAIN
++#AC_FC_MAIN
++#AC_F77_WRAPPERS
++#AC_FC_WRAPPERS
++#AC_F77_FUNC
++#AC_FC_FUNC
++#AC_FC_PP_SRCEXT
++#AC_FC_PP_DEFINE
++#AC_FC_FREEFORM
++#AC_FC_FIXEDFORM
++#AC_FC_LINE_LENGTH
++#AC_FC_CHECK_BOUNDS
++#AC_F77_IMPLICIT_NONE
++#AC_FC_IMPLICIT_NONE
++#AC_FC_MODULE_EXTENSION
++#AC_FC_MODULE_FLAG
++#AC_FC_MODULE_OUTPUT_FLAG
+ 
+ # Checks for library functions.
+ AC_FUNC_ALLOCA
diff --git a/toolchain/autoconf-lean/patches/120-add-extra-checks.patch b/toolchain/autoconf-lean/patches/120-add-extra-checks.patch
new file mode 100644
index 0000000000..7e81525daf
--- /dev/null
+++ b/toolchain/autoconf-lean/patches/120-add-extra-checks.patch
@@ -0,0 +1,48 @@
+--- a/config-site-generator/configure.ac
++++ b/config-site-generator/configure.ac
+@@ -23,6 +23,7 @@ AC_DEFUN([AC_MSG_ERROR], [
+     test -e conftest.dir && rm -rf conftest.dir ])
+ 
+ # Checks for programs.
++AC_PROG_CC
+ AC_PROG_CC_C89
+ AC_PROG_CC_C_O
+ AC_PROG_CPP
+@@ -52,9 +53,11 @@ AC_PROG_LEX
+ AC_PROG_LN_S
+ AC_PROG_RANLIB
+ AC_PROG_SED
++AC_PROG_LEX
+ #AC_PROG_YACC
+ 
+ AM_PROG_AS
++AM_PROG_AR
+ 
+ # Checks for system services.
+ #AC_PATH_X
+@@ -118,6 +121,8 @@ sys/ucontext.h sys/uio.h sys/un.h sys/us
+ sys/wait.h sys/xattr.h tar.h termios.h tgmath.h time.h ucontext.h ulimit.h \
+ unistd.h utime.h utmp.h utmpx.h wchar.h wctype.h wordexp.h
+ ])
++# extra headers
++AC_CHECK_HEADERS([sys/cdefs.h])
+ 
+ # Checks for typedefs, structures, and compiler characteristics.
+ AC_TYPE_GETGROUPS
+@@ -217,6 +222,16 @@ AC_FUNC_STRTOLD
+ AC_FUNC_UTIME_NULL
+ AC_FUNC_VPRINTF
+ 
++AC_CHECK_SIZEOF(short)
++AC_CHECK_SIZEOF(int)
++AC_CHECK_SIZEOF(long)
++AC_CHECK_SIZEOF(long long)
++AC_CHECK_SIZEOF(unsigned int)
++AC_CHECK_SIZEOF(unsigned long)
++AC_CHECK_SIZEOF(unsigned long long)
++AC_CHECK_SIZEOF(off_t)
++AC_CHECK_SIZEOF(size_t)
++
+ # Functions list scraped from musl 0.9.4 x86_64
+ AC_CHECK_FUNCS([ \
+ a64l abort abs accept access acos acosf acosh acoshf acoshl acosl addmntent \